Mrs Gentle, who claims it was an illegal war, believes he died because the Army did not provide him with the proper equipment. She and other campaigners want 25 notes between the two former world leaders published, along with records of more than 130 phone conversations.

But the Chilcot Inquiry into the conflict ruled private discussions between the pair before the war will not be revealed.

Mrs Gentle said: “I feel Blair has got a lot to do with the decision. He’s going to walk away from this with a smile on his face and he’s laughing at us.”

Ex-Labour MP Andrew MacKinlay accused the inquiry chairman Sir John Chilcot of “surrendering” and added: “Truth has lost out.”